Lagioia, E P; Milone, Antonino; Stetson, Peter B; Bono, G; Prada Moroni, P.G.; Dall'Ora, Massimo; Aparicio, A; Buonanno, R; Calamida, A; Ferraro, I.
We present deep and precise multi-band photometry of the Galactic bulge globular cluster NGC 6528. The current data set includes optical and near-infrared images collected with ACS/WFC, WFC3/UVIS, and WFC3/IR on board the Hubble Space Telescope. The images cover a time interval of almost 10 yr, and we have been able to carry out a proper-motion separation between cluster and field stars. We performed a detailed comparison in the m F814W, m F606W-m F814W color-magnitude diagram with two...[Show more]
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